Dogs have this endearing characteristic of tilting their heads, as if asking you "whats next or what do you mean?" People tilt their heads too when they want to understand more. But of course dogs doing this act are more adorable than people.

Just as in humans, dogs tilt their heads too when they want to hear better. Dogs can easily converse with each other merely by sniffing and by growling. Obviously it would be a different thing with humans. Dog are intelligent creatures but we must realize that our actions as well as speech can be confusing to a dog.

Usually dog would tilt their heads if the sound or the person talking are in front of them. Head tilting will not be necessary if the sound is coming from the side as the sound waves will go right in.

Some dogs however are showoffs. They would tilt their head because they know that their beloved masters are amused and performing can gain them a hug, a cuddle and a tasty treat.